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Recognised as Colour

#A71223

  • #A71223
  • Red
  • Dark
  • Nearest: Firebrick

#A71223 is a red with RGB values 167, 18, 35 and HSL 353°, 81%, 36%. It is a dark colour, so white text on it reaches 7.6:1 contrast (AAA for normal text). The nearest named colour is Firebrick.

Colour values

#A71223#A71223
HEX#A71223
RGBrgb(167, 18, 35)
RGB (0–1)0.6549, 0.0706, 0.1373
RGB percentages65.5%, 7.1%, 13.7%
HSLhsl(353.2, 80.5%, 36.3%)
HSV / HSBhsv(353.2, 89.2%, 65.5%)
CMYK0%, 89.2%, 79%, 34.5%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer10,949,155
CSS custom property--colour: #A71223;

Brightness & contrast

Relative luminance0.08769WCAG 2.x, 0 is black and 1 is white
Perceived brightness93.1 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 7.63:1
Contrast with white7.63:1WCAG normal text: AAA
Contrast with black2.75:1WCAG normal text: Fail
Greyscale equivalent#333333
Inverted#58EDDC

Colour vision & accessibility

Protanopia#464022no red cones; affects about 1% of men; ΔE 61 from the original
Deuteranopia#6A5E1Dno green cones; the most common form, about 1% of men; ΔE 60.2 from the original
Tritanopia#B8001Bno blue cones; rare, and affects men and women equally; ΔE 11.1 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text7.63:1WCAG large text: AAA
Contrast with black, large text2.75:1WCAG large text: Fail

Named colours

Nearest named CSS colourFirebrick (#B22222)ΔE 6.17, clearly different but related
Hue familyred
CSS keyword usableNo exact keyword

Colour harmonies

Complementary#12A796
Analogous#A7126D, #A74C12
Triadic#23A712, #1223A7
Split complementary#12A74C, #126DA7
Tetradic#6DA712, #12A796, #4C12A7

Tints, shades & saturation

Lighter +40%#F3929D
Lighter +30%#EE6474
Lighter +20%#E9364A
Lighter +10%#D5172D
Darker −10%#790D19
Darker −20%#4B0810
Darker −30%#1D0306
Darker −40%#000000
More saturated +25%#B90015
Less saturated −25%#902935

Channel breakdown

R167
G18
B35
Red167 (65.5%)
Green18 (7.1%)
Blue35 (13.7%)
Hue353.15°
Saturation (HSL)80.54%
Lightness36.27%
Dominant channelRed
Hex per channelR A7 · G 12 · B 23

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Every value on this page was computed from “a71223” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.